pppstats(1M)						  System Administration Commands					      pppstats(1M)

NAME

       pppstats - print PPP statistics

SYNOPSIS

       pppstats [-a] [-v] [-r] [-z] [-c <count>] [-w <secs>]
	    [interface]

DESCRIPTION

       The  pppstats utility reports PPP-related statistics at regular intervals for the specified PPP interface. If the interface is unspecified,
       pppstats defaults to sppp0. The display is split horizontally into input and output sections containing columns	of  statistics	describing
       the properties and volume of packets received and transmitted by the interface.

OPTIONS

       The pppstats options are:

       -a	    Display  absolute values rather than deltas. With this option, all reports show statistics for the time elapsed since the link
		    was initiated. Without this option, the second and subsequent reports show statistics for the time since the last report.

       -c count     Repeat the display count times. If this option is not specified, the default repeat count is 1 if the -w option is not  speci-
		    fied, otherwise infinity.

       -r	    Display additional statistics summarizing the compression ratio achieved by the packet compression algorithm in use.

       -v	    Display additional statistics relating to the performance of the Van Jacobson TCP header compression algorithm.

       -w wait	    Pause  wait seconds between each display. If this option is not specified, the default interval is five seconds.

       -z	    Instead of the standard display, show statistics indicating the performance of the packet compression algorithm in use.

EXTENDED DESCRIPTION

       The following fields are printed on the input side when the -z option is not used:

       IN	  Total number of bytes received by this interface.

       PACK	  Total number of packets received by this interface.

       VJCOMP	  Number of header-compressed TCP packets received by this interface.

       VJUNC	  Number of header-uncompressed TCP packets received by this interface. Not reported when the -r option is specified.

       VJERR	  Number of corrupted or bogus header-compressed TCP packets received by this interface. Not reported when the -r option is speci-
		  fied.

       VJTOSS	  Number of VJ header-compressed TCP packets dropped on reception by this interface because of	preceding  errors.  Only  reported
		  when the -v option is specified.

       NON-VJ	  Total number of non-TCP packets received by this interface. Only reported when the -v option is specified.

       RATIO	  Compression  ratio  achieved	for  received  packets	by  the packet compression scheme in use, defined as the uncompressed size
		  divided by the compressed size. Only reported when the -r option is specified.

       UBYTE	  Total number of bytes received, after decompression of compressed packets. Only reported when the -r option is specified.

       The following fields are printed on the output side:

       OUT	 Total number of bytes transmitted from this interface.

       PACK	 Total number of packets transmitted from this interface.

       VJCOMP	 Number of TCP packets transmitted from this interface with VJ-compressed TCP headers.

       VJUNC	 Number of TCP packets transmitted from this interface with VJ-uncompressed TCP headers. Not reported when the -r option is speci-
		 fied.

       NON-VJ	 Total number of non-TCP packets transmitted from this interface. Not reported when the -r option is specified.

       VJSRCH	 Number  of searches for the cached header entry for a VJ header compressed TCP packet. Only reported when the -v option is speci-
		 fied.

       VJMISS	 Number of failed searches for the cached header entry for a VJ header compressed TCP packet. Only reported when the -v option	is
		 specified.

       RATIO	 Compression  ratio  achieved for transmitted packets by the packet compression scheme in use, defined as the size before compres-
		 sion divided by the compressed size. Only reported when the -r option is specified.

       UBYTE	 Total number of bytes to be transmitted before packet compression is applied. Only reported when the -r option is specified.

       When the -z option is specified, pppstats displays the following fields relating to the packet compression algorithm currently in  use.	If
       packet compression is not in use, these fields display zeroes. The fields displayed on the input side are:

       COMPRESSED BYTE	      Number of bytes of compressed packets received.

       COMPRESSED PACK	      Number of compressed packets received.

       INCOMPRESSIBLE BYTE    Number of bytes of incompressible packets (that is, those which were transmitted in uncompressed form) received.

       INCOMPRESSIBLE PACK    Number of incompressible packets received.

       COMP RATIO	      Recent  compression  ratio  for  incoming  packets,  defined as the uncompressed size divided by the compressed size
			      (including both compressible and incompressible packets).

       The fields displayed on the output side are:

       COMPRESSED BYTE	      Number of bytes of compressed packets transmitted.

       COMPRESSED PACK	      Number of compressed packets transmitted.

       INCOMPRESSIBLE BYTE    Number of bytes of incompressible packets received; that is, those that were transmitted by the peer in uncompressed
			      form.

       INCOMPRESSIBLE PACK    Number of incompressible packets transmitted.

       COMP RATIO	      Recent compression ratio for outgoing packets.

ATTRIBUTES

       See attributes(5)  for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWpppdu 		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pppd(1M), attributes(5)

SunOS 5.11							    4 May 2001							      pppstats(1M)